How to add good light to surrounding to get a best result
Your question isn't terribly clear, but I'll give you a few hints at the complexity behind such questions.

For one, your scene referred render (assuming you are using Cycles) will range from zero to infinity in terms of values. The viewing transform (see the color management panel) determines how much of this scene you are going to "see" end up in your final render.

So what is "good" then? If we are talking about a photographic "good", then you can't achieve it with the default sRGB mapping of scene values to display referred values. It is fundamentally impossible without additional tweaking and bending. This is apparent from the clipped scene values in the upper right of your sample image.

The proper solution to getting a photographic dynamic range is simply to replace or add one of your transforms to properly map your scene referred range down into the display referred range.

For more information, you can peruse the tip of this complex iceberg over at this link.